Pie-rolling machine



M 17 1927' J. w. DENMEAD PIE oLLING MACHINE Filed May 19, 1925 PatentedMay 17, 1927.

entren stares inrieivr oFF-ier..

Joint w. nniviviniin, er nizizoiv, omo, AssiGNon'oF ONE-HALF TowrLLrAi/r A. JOHN- v sroN, or AKRON, OHIO.

PIE-ROLLING- MACHINE.

.iippiioation eiedvMay 19, 1926. serial No, 110,243,

'lheobject of my invent-ion, primarily, is to enable the manufacture ofpastry, such as pies which include a Vcup-shaped bottom crust, and amore or less flat top crust by the use of a machine, so that all Vorpractically all of the operations may be performed mechanically orautomaiiczilly, and thus by reason of a great increase of output overhand work, the cost of manufacture may be greatly reduced, and at thesaine time the operation be performed with less labor, and performedwith even greater efficiency in regard to quality of product than canordinarily be done by hand worlr, which may not be of the highest skill..My invention consists in a machine having a construction as defined byor. included withinthe scope of the appended claims.

in the drawings: i

Fig. l is a top plan view of a machine embodying my invention adaptedfor making'pies having' a dished bottom crust and a nat top crust,

Fig. 2 is a side elevation thereof;

Fig. 3 of the devices for rolling or forming the flat-top crust;

Fig. el is a detail view of an attachment whichmay be used in casethegcrust` requires to be perforated.

Brie-ily described, the machine shown in the drawings, starting with aballV or lump of dough sufficient to form the crust, performs theoperations of giving shape to'` the crust, that shape being dish formfor the bottom crust and disc form for the top crust,tfhef trimming ofthe edge of the crust atthe top-to remove surplus dough, andcrimping therim of the crust at the top. A simple substitution of parts, ashereinafter fully explained is required for the production "i the bottomand top crusts, and for perferat-l ing the crusts', when that may benecessaru rllhe frame-work of the machine comprises a horizontal tableor plate,i0, which is supaorted at a suitable heifrht bv legs li. conl'J J i., 3 l

nected and braced by horizontal members,

i2, the'legs and the brace members being Aconveniently made of pipes ortubing. 'owards the front of the machine and at tu e center thereof is avertical shaft, 13,4 thatextends from bearing? Dear the bottom of theframe-work througi on the table, and above the latter, andate its upperend. removably carries l a circular is aV detail view in side elevationi a bearing, 15,1.

holder for the dough which is to: be shaped into crust, and is eitherthe dish-form-holder, 1C, adapted to receive a pie plateor dish, l'

(see Fig, l), fory forming the lbottom Vcrust ofthe pie, or the i'iatdisc form holder, 1GO,

(see Fig. when the top crust is to be formed, these holders beinginterchangeable. For ready interchangeability, each' holder has on itsunderside a hub with an axial hole that lits the tapered upper end ofthe shaft.

.To form a positive rotating connection lbetween the shaft andl holder,the shaft has a radiaipin, l5, for engagement by a downvwardly openingslot in the lower endofithe may conveniently be placed. in the plate orholder, andthe finished crust removed, and at the same time place theshaft in or out of driving connection with the shaft rotating means. Forraising the shaft to 'place .the dough holder in and holding it in its yraised position,` I provide a hand lever, l),

which extends conveniently at' the front of the machine from alink, V2O,vhung to the machine table to which linlrthe rear end lof the leverispivoted', and between its ends the handle is pivotally attached to acollar, 2l, in. whichthe shaft turns, which is iin against longitudinalmovement of the shaft by set collars, 22, above'and below the same.

The upper set collar, 22, forms a stop to. Alimit the upward movement ofthe'shaftby engaging the upper end of the upper shaft bearing, l5. Acollar,v23, secured to the shaft near the lower end foi-insha sten tolimit the descent of the shaft by engaging the upperv end of the lowershaft bearing, le.

Secured tothe shaft, 13, is aliorizontal disc, 24, which is the drivenmember ofja friction drive, the drive member being av disc, 25, keyedvtoone end of a shaft, 26, to

theother end of which is key-ed` a pulley, 2?, which by a belt, 28, isdriving ,connect ed witha drive pulley, 29, onithe drive'sliaft, 30,which hasla driving pulley, 31. The shaft, 26, is journaledto revolveina bearing, 32 at theV end of anjarm, 33, whichgisj pivoted'toswing onthe drive shaft, 30.?1550 that the friction' gear drive discl mayrestlao with the desired pressure upon the driven disc. When the holdercarrying shaft, 13, is at its lowest posit-ion, the driver disc is outof contact with the driving disc and When said shaft is movedvertically, the driver disc is brought into contact with the drivingdisc, and the two move upward together for the remainduf of the liftingmovement of said shaft, i3, and 'thus is assured prop-er driving contactof the members of the friction drive. 'lo limit the de scent of thedriver disc, and thus assure the disconnection of the friction drivewhen the rotation of the shaft, 13, and the holder is to cease, there isconnected to the swinging arm, 33, a vertically extending rod whichpasses upwardly above the 'table which has a collar, 34a, fixed to it,which when the shaft, 13, is at its highest position is spaced above aguide, 85, for said rod which is secured to the table and in contactWith the top of said guide, said stop collar, comes when the desiredl`.nit of 1=cscent of the driving disc of the friction drive is reached.

For rolling the dough in or on the holder to produce the crust of thedesired shape and thickness, l use a roller which is of the propercontour according as bottom crust or top crust is to be rolled. rlihus,for rolling bottom crust, the roller, 36, as shown in Figs. l and 2 hasa conical portion Whose apex reaches to the center of the holder, andWhose base reaches to the outvv'ardly flared rim of tl e pie plate, soas to roll, and give shape to the bottom portion of bottom crust, andjoining the ase of said conical portion, is a frustoeconical portionWhose sides slant at the angle oi the'flange rim of the pie plate, andhave an extent to reach just above the top. it point situated justoutside the rim of the. bot-tous. crust holder, said roller has a :z gor collar, 37, from which projects out vardly a stub shaft or gudgeon,38, which enters a tubular shaft or mandrel. 3S), joui lf an incline ina bearing, 40, sup-poici` bracket, 4l, mounted on the tabie top. lieroller is detachably connected with the mandrel as by means of a radialpan, e112, on the stub shaft, and a bayonet slot., i3, at the cud of themandrel. Thus, the vroller may be easily applied and ren'ioved, so thatthere may be interchange With thel simple conical roller, 360, Which hasastub shaft and radial pin for cooperation with the hollow mandrel. Toenable the careful adjustment of the angle of the mandrel bearing, 40,so as to have the roller in accurate relation with the dough holder.said bearing has a pivotal connection with the bracket, el, Whichpivotal connection coi'ujn-ses a clamp bolt, t. which Will secure thebearing in the position to which it may be ad? Y justed. For revolvingthe crust forming roller to cause it to properly roll the dough, themandrel has on its rear end a grooved pulley, 45, which is connected bya round belt, fili, with a driving pulley, l-", onlthe driving shaft.due run of the belt passes over an idler pulleyr` ll, secured to theback olI the table top.

lSor trimming oli" the edge of surplus crust, and. making a neat roundedfinish, ll provide a knife, 49, preferal'ily of disc form which iscarried at the end o :in arm, 5o, which is pivoted to risc'and fall sothat the knife will rest with sufficient pressure upon the crust edge just within the edge of the rotary holder to trim off the desiredquantity of 'the pie crust edge. lSaid arm, 50, is piveted on a rod orstationary shaft 5l, which passes through a hole in the part Whichcarries the mandrel bearing. l0, and is fixed thereto as by bolts orscrevvs. And said shaft, 5i, is projected far enough on the oppositeside to receive and pivotally support au arm, 52, which at its outer endpivotaliy supports a crust crimping disc, 53, said disc having for thepurpose a milled or corrugated periphery, and which rests freely uponthe top edge of the pie crust as the latter revolves, and therebyproduce the desired crimps.

lt is .sometimes desirable to perforate the bottom crust to providesmall holes to let out air during baking to avoid blistering the crust.l provide for that purpose the roller7 oil, shown in Fig. il that hasthe same contour :is the roller for forming the bottom crust, but uponits periphery has one or more rows of sharp spurs, 55, which vvillpenetrate and perforate the crust during the crust forming operation.Said roller, 54:, is carried by an arm, 5G, so that by removing thecrimping' disc With its arm from'the shaft, 5l, the perfor-ating rollercarrying arm, 5G, may be applied to said shaft.

lt will be seen that by the use of the ma` chine embodying my invention,the bottomv and top crusts can be very easily and rapidly made, so thatno hand Work or manipulation is required, except in placing thetopcrust.

after the filling has been placed in the bottom crust. rlhe machine canbe used With the bottom crust formingJ roller, until the bottom crustsfor a number of pies have ybeen made, and then the necessary simplesubstitution of parts may be made to make top crusts Jfor a quantity ofpies. rlheneach bottom crust being provided with its iilling, the pan ordish containing the same can be replaced in the machine With the topcrust applied, and then the machine will perform the trimming andcrimping operations on the top crust.

It is to be understood that those features of my` invention which renderit applicable lill) llo` llo

te forming or shaping articles other than pie crust are consid-ered tobe Within the Cil scope of the followingclaims,.which do not changeablewhereby at different :times differ-V hav'e limitations or ameaning't-hat excludes machines "for `mak1ng other Aarticles. vTheadhesive or sticky nature of doughmales the frictiona'l Vengagement ofthe dough with the roller a Vfactor kor means of imparting rotation tothe roller, and my invention may be embodied in machines in which thebelt drive for the conical roller may be omitted.

As shown in Fig. 2 a light coil spring, 5.7, is att-ached at'its lowerYend to the lever, 52,

and at its upper end tosome overhead point.

to holdy the vcrimper in'a raised position, eX.-

cept when it is pressed by hand down..

against the dough.V And if desired asimilar spring may be attached tothe trimmer knife lever, 50. It will be understood that when the knife,49, is pressed through the dough into Contact with the rim of theholder, l6, the friction of thelatter will revolve the knife.

'1. Amachine for shaping material, such as dough, comprising twocoacting rotary members, eachY having its rotating means, and a vmovablesupport for one'. of. such members for bringing them together in workingrelation and separating them, one ofsuch meinbers having amaterial-engaging surface that extends substantially from lthe center ofro tation of the other rotary member radially outward and is adapted tohave contact with the material as the two members rot-ate, whereby athin disc is formed.

A machine for shaping material, such as dough, comprising two coactingrotary members, each having its rotating means, and a movable supportfor one of such members for bringing them together in working relationand separating them, the rotating means ofk the member inovableasdescribed being rendered inactive when the members are separated, one ofsuch members having a niaferial-engaging surface that extendssubstantially from the center of rotation of the other rotary memberradially outward 'and is adapted to have contact with the material asthe two members rotate, whereby a thin disc is formed.

3. A machine forshaping material, such as dough, comprising two coactingrotary members, a vertically movable shaft for one of suchmeinbers,mea-ns for rotating said shaft comprising gearing that is engaged and ydisengaged by the opposite vertical movement-s vof said shaft, yandmanual means for controlling the vertical movement of said shaft. v i

A machine for shaping material, such as dough, comprising two coastingrotary iiieinbeis, each having its rotating means,

and a movable support for one of such mem-A bewz for bringing themtogether in working relation and separating them, both of said membersbeing parts of sets that are interent part-s may be cooperatively used,

A machine .for forming'inateriahjsuch as dough, comprising cooperating.rotating members, a vertical' shaft lfor one of said members, means formoving said shaft vertically, afriction disc on said shaft, acooperating driving disc, a vertically ymovable support for said drivingkdi s c ,-and vmeans limit the,vertical.movement ofsaid driving disc..Y. l. i.

6. A machine for formingmateriahsuch as dough, comprising arotary holderand a cooperating former having al material-engaging surface. thatextends substantially ,from the center ofmotion of the Vrotary holderand radially outward,1ineans for s upp'orting suchformer in a position.relative to which the holder rotates, whereby by the rotation :of theholderthe material is progressively brought linto `contact* withv theformer, .and a ftool acting .on the material on ,the holder. situated atthe rim of ythe holder..

' 7. A machine for `formingfinaterial such asdough, comprisingfarotaryholder and a cooperating lformer having a .materialengagingsurface that extends substantially from the centenjof motion of therotary holder and radially outwar, dmeans for slipporting such former ina position relative to which theholder rotates, whereby bythe rotationof the holder the 'material is progressively brought into contact withthe former, and twotools situated to act upon material on the former atthe rim thereof, one of such tools being a knife.

8. A machine for forming material, suc-li as dough, comprising a rotaryholder and 'a cooperating former, a tool act-ing on the material on theholder situated at'the rim of the holder, and a. vertically swinging armcarrying said tool.A

9. Arniachine for forming material, such as dough, comprising a rotaryholder and a cooperating former. two tools, situated to act uponmaterial, on the former at the rim thereof, one of such tools being aknife, and vertically swinging arms carrying said tools.

l0. The combination of a'franie-work, a vertical shaft journaled inbearings on said frame-work, said shaft being vertically movable, aremovable holder at the upper end of said shaft, means on the shafttoliinit 'its vertical movement in both directions, a mandrel mountediii a bearing on said framework, a rotary former removably connected.with said mandrel, a main driving shaft, a

driving connection .between said shaftl and said mandrel anvarm hung onVsaid shaft, a driving disc carried by said arm, a driving connectionbetweenV said disc and said shaft,

a driver disc with which said first mentioned driving disc cooperates,and means to vlimit the downward swing of said arm.

llO

ll. A machine for shaping material, such as dough, comprising twoco-acting rotary members,` one of saidmembers being a conical roller andmeans supporting said roller with its small end substantially at thecenter o'l rotation of the other rotary member, and with its sideextending radially outward whereby a flat disc is formed from the matefrial being operated on.

l2. A machine for shaping material, such as dough, comprising twoco-acting rotary members, one of said members being a conical roller,and the other being a` disc and means supporting said roller with itssmall end substantially atl the center ot' rotation ot' the other rotarymember. and with its side extending radially outward whereby a flat discis formed from the material being operated on.

13. A machine for shaping material, such as dough, comprising twoco-acting` rotating members, one of said members having a shape toconform with the article, and the other member being a support for atormer in which the article is iormed and means for maintaining one ofsuch members in a fixed position with reference to the other as thelatter rotates.

14. A machine for shaping material, such as dough, comprising twoco-acting rotary members, one being cone-shape, and the other being asupport for a dish such as pies are made in and means for supporting thecone-shaped member with its small end substantially at the center ofrotation of the other member with its side extending therefrom radiallyoutward and adapted to contact with the material carried by saidsupport.

1 5. A machine for shaping material, such as dough, comprising twoeo-acting members, one ot' said members being a conical shape and theother member disc shape, means for supporting the conical member withits small end substantially at the center o'l': rotation ot thedisc-shaped member with its side extending radially outward to the rimof thedisc, and means for moving one of said members to place themcloser or farther apart.

16. A machine for shaping material, such as dough, comprising twoco-acting members, one being a conical shape, and which rotates, and theother a holder for supporting a form for the article to be shaped whichis of disc form and also rotates, said conical member being supported ina fixedV position with reference to the other member and with itssmaller end extending substantially from the` center of rotation of theother member outward.

In testimony whereof:l I hereunto aiiix my signature.

JOHN WV. DENMEAD.

